[core] Render fill-extrusion layers (#8431)

2 files changed, 121 insertions, 19 deletions

diff --git a/test/style/conversion/light.test.cpp b/test/style/conversion/light.test.cpp
new file mode 100644
index 0000000000..da0fd3054a
--- /dev/null
+++ b/test/style/conversion/light.test.cpp
@@ -0,0 +1,101 @@
+#include <mbgl/test/util.hpp>
+
+#include <mbgl/style/conversion.hpp>
+#include <mbgl/style/rapidjson_conversion.hpp>
+#include <mbgl/style/conversion/constant.hpp>
+#include <mbgl/style/conversion/light.hpp>
+#include <mbgl/style/position.hpp>
+#include <mbgl/util/rapidjson.hpp>
+#include <mbgl/util/color.hpp>
+#include <mbgl/util/chrono.hpp>
+
+#include <array>
+
+using namespace mbgl;
+using namespace mbgl::style;
+using namespace mbgl::style::conversion;
+
+TEST(StyleConversion, Light) {
+    Error error;
+
+    auto parseLight = [&](const std::string& src) {
+        JSDocument doc;
+        doc.Parse<0>(src);
+        return convert<Light>(doc, error);
+    };
+
+    {
+        auto light = parseLight("{}");
+        ASSERT_TRUE((bool) light);
+    }
+
+    {
+        auto light = parseLight("{\"color\":{\"stops\":[[14,\"blue\"],[16,\"red\"]]},\"intensity\":0.3,\"position\":[3,90,90]}");
+        ASSERT_TRUE((bool) light);
+
+        ASSERT_TRUE(light->get<LightAnchor>().value.isUndefined());
+        ASSERT_FALSE(light->get<LightAnchor>().value.isConstant());
+        ASSERT_FALSE(light->get<LightAnchor>().value.isCameraFunction());
+
+        ASSERT_FALSE(light->get<LightIntensity>().value.isUndefined());
+        ASSERT_TRUE(light->get<LightIntensity>().value.isConstant());
+        ASSERT_EQ(light->get<LightIntensity>().value.asConstant(), 0.3f);
+        ASSERT_FALSE(light->get<LightAnchor>().value.isCameraFunction());
+
+        ASSERT_FALSE(light->get<LightColor>().value.isUndefined());
+        ASSERT_FALSE(light->get<LightColor>().value.isConstant());
+        ASSERT_TRUE(light->get<LightColor>().value.isCameraFunction());
+
+        ASSERT_FALSE(light->get<LightPosition>().value.isUndefined());
+        ASSERT_TRUE(light->get<LightPosition>().value.isConstant());
+        std::array<float, 3> expected{{ 3, 90, 90 }};
+        ASSERT_EQ(light->get<LightPosition>().value.asConstant(), mbgl::style::Position({ expected }));
+        ASSERT_FALSE(light->get<LightPosition>().value.isCameraFunction());
+    }
+
+    {
+        auto light = parseLight("{\"color\":\"blue\",\"intensity\":0.3,\"color-transition\":{\"duration\":1000}}");
+        ASSERT_TRUE((bool) light);
+
+        ASSERT_FALSE(light->get<LightColor>().value.isUndefined());
+        ASSERT_TRUE(light->get<LightColor>().value.isConstant());
+        ASSERT_FALSE(light->get<LightColor>().value.isCameraFunction());
+        ASSERT_EQ(light->get<LightColor>().transition.duration, mbgl::Duration(mbgl::Milliseconds(1000)));
+        ASSERT_FALSE((bool) light->get<LightColor>().transition.delay);
+    }
+
+    {
+        auto light = parseLight("{\"intensity\":false}");
+
+        ASSERT_FALSE((bool) light);
+        ASSERT_EQ("value must be a number", error.message);
+    }
+
+    {
+        auto light = parseLight("{\"intensity\":{\"stops\":[[15,\"red\"],[17,\"blue\"]]}}");
+
+        ASSERT_FALSE((bool) light);
+        ASSERT_EQ("value must be a number", error.message);
+    }
+
+    {
+        auto light = parseLight("{\"color\":5}");
+
+        ASSERT_FALSE((bool) light);
+        ASSERT_EQ("value must be a string", error.message);
+    }
+
+    {
+        auto light = parseLight("{\"position\":[0,5]}");
+
+        ASSERT_FALSE((bool) light);
+        ASSERT_EQ("value must be an array of 3 numbers", error.message);
+    }
+
+    {
+        auto light = parseLight("{\"anchor\":\"something\"}");
+
+        ASSERT_FALSE((bool) light);
+        ASSERT_EQ("value must be a valid enumeration value", error.message);
+    }
+}
diff --git a/test/style/paint_property.test.cpp b/test/style/paint_property.test.cpp
index 39d31068c1..15a0796f21 100644
--- a/test/style/paint_property.test.cpp
+++ b/test/style/paint_property.test.cpp
@@ -1,12 +1,13 @@
 #include <mbgl/test/util.hpp>
 
 #include <mbgl/style/paint_property.hpp>
+#include <mbgl/style/transitioning_property.hpp>
 
 using namespace mbgl;
 using namespace mbgl::style;
 using namespace std::literals::chrono_literals;
 
-float evaluate(UnevaluatedPaintProperty<PropertyValue<float>>& property, Duration delta = Duration::zero()) {
+float evaluate(TransitioningProperty<PropertyValue<float>>& property, Duration delta = Duration::zero()) {
     PropertyEvaluationParameters parameters {
         0,
         TimePoint::min() + delta,
@@ -22,7 +23,7 @@ float evaluate(UnevaluatedPaintProperty<PropertyValue<float>>& property, Duratio
     return property.evaluate(evaluator, parameters.now);
 }
 
-PossiblyEvaluatedPropertyValue<float> evaluate(UnevaluatedPaintProperty<DataDrivenPropertyValue<float>>& property, Duration delta = Duration::zero()) {
+PossiblyEvaluatedPropertyValue<float> evaluate(TransitioningProperty<DataDrivenPropertyValue<float>>& property, Duration delta = Duration::zero()) {
     PropertyEvaluationParameters parameters {
         0,
         TimePoint::min() + delta,
@@ -38,15 +39,15 @@ PossiblyEvaluatedPropertyValue<float> evaluate(UnevaluatedPaintProperty<DataDriv
     return property.evaluate(evaluator, parameters.now);
 }
 
-TEST(UnevaluatedPaintProperty, EvaluateDefaultValue) {
-    UnevaluatedPaintProperty<PropertyValue<float>> property;
+TEST(TransitioningProperty, EvaluateDefaultValue) {
+    TransitioningProperty<PropertyValue<float>> property;
     ASSERT_EQ(0.0f, evaluate(property));
 }
 
-TEST(UnevaluatedPaintProperty, EvaluateUntransitionedConstant) {
-    UnevaluatedPaintProperty<PropertyValue<float>> property {
+TEST(TransitioningProperty, EvaluateUntransitionedConstant) {
+    TransitioningProperty<PropertyValue<float>> property {
         PropertyValue<float>(1.0f),
-        UnevaluatedPaintProperty<PropertyValue<float>>(),
+        TransitioningProperty<PropertyValue<float>>(),
         TransitionOptions(),
         TimePoint::min()
     };
@@ -54,18 +55,18 @@ TEST(UnevaluatedPaintProperty, EvaluateUntransitionedConstant) {
     ASSERT_EQ(1.0f, evaluate(property));
 }
 
-TEST(UnevaluatedPaintProperty, EvaluateTransitionedConstantWithoutDelay) {
+TEST(TransitioningProperty, EvaluateTransitionedConstantWithoutDelay) {
     TransitionOptions transition;
     transition.duration = { 1000ms };
 
-    UnevaluatedPaintProperty<PropertyValue<float>> t0 {
+    TransitioningProperty<PropertyValue<float>> t0 {
         PropertyValue<float>(0.0f),
-        UnevaluatedPaintProperty<PropertyValue<float>>(),
+        TransitioningProperty<PropertyValue<float>>(),
         TransitionOptions(),
         TimePoint::min()
     };
 
-    UnevaluatedPaintProperty<PropertyValue<float>> t1 {
+    TransitioningProperty<PropertyValue<float>> t1 {
         PropertyValue<float>(1.0f),
         t0,
         transition,
@@ -77,19 +78,19 @@ TEST(UnevaluatedPaintProperty, EvaluateTransitionedConstantWithoutDelay) {
     ASSERT_FLOAT_EQ(1.0f, evaluate(t1, 1500ms));
 }
 
-TEST(UnevaluatedPaintProperty, EvaluateTransitionedConstantWithDelay) {
+TEST(TransitioningProperty, EvaluateTransitionedConstantWithDelay) {
     TransitionOptions transition;
     transition.delay = { 1000ms };
     transition.duration = { 1000ms };
 
-    UnevaluatedPaintProperty<PropertyValue<float>> t0 {
+    TransitioningProperty<PropertyValue<float>> t0 {
         PropertyValue<float>(0.0f),
-        UnevaluatedPaintProperty<PropertyValue<float>>(),
+        TransitioningProperty<PropertyValue<float>>(),
         TransitionOptions(),
         TimePoint::min()
     };
 
-    UnevaluatedPaintProperty<PropertyValue<float>> t1 {
+    TransitioningProperty<PropertyValue<float>> t1 {
         PropertyValue<float>(1.0f),
         t0,
         transition,
@@ -103,14 +104,14 @@ TEST(UnevaluatedPaintProperty, EvaluateTransitionedConstantWithDelay) {
     ASSERT_FLOAT_EQ(1.0f, evaluate(t1, 2500ms));
 }
 
-TEST(UnevaluatedPaintProperty, EvaluateDataDrivenValue) {
+TEST(TransitioningProperty, EvaluateDataDrivenValue) {
     TransitionOptions transition;
     transition.delay = { 1000ms };
     transition.duration = { 1000ms };
     
-    UnevaluatedPaintProperty<DataDrivenPropertyValue<float>> t0 {
+    TransitioningProperty<DataDrivenPropertyValue<float>> t0 {
         DataDrivenPropertyValue<float>(0.0f),
-        UnevaluatedPaintProperty<DataDrivenPropertyValue<float>>(),
+        TransitioningProperty<DataDrivenPropertyValue<float>>(),
         TransitionOptions(),
         TimePoint::min()
     };
@@ -120,7 +121,7 @@ TEST(UnevaluatedPaintProperty, EvaluateDataDrivenValue) {
         IdentityStops<float>()
     };
     
-    UnevaluatedPaintProperty<DataDrivenPropertyValue<float>> t1 {
+    TransitioningProperty<DataDrivenPropertyValue<float>> t1 {
         DataDrivenPropertyValue<float>(sourceFunction),
         t0,
         transition,